Transmission-gearing.



G. W. BULLEY. TRANSMISSION GEAEING.

urmsulox mum JUKES, 1912,

1,075,328, Patented Oct. 14, 1913.

3 8HEETS-SHEET 1.

Egg, 1.

G. W. BULLEYL TRANSMISSION HEARING.

APPLICATION 211.21) mm: a, 1912.

Patented 0ct.14,1913.

3 SHEETS-SHEET 2.

G. W. BULLEY.

TRANSMISSION GBAEING.

APPLICATION FILED mm: 3, 1912.

1,075,328. Patented Oct. 14, 1913.

8 SHEETS-SHEET 3.

Jim); A

46 51 5656M J5 J7 UNITED stratrns PATENT OFFICE.

GEORGE W,-BULLE, 0F cnibeeo, ILLINoIs, AssIoNoR' TO THE MERCURY MANUFAC- TUBING coil/trans, or c IIcAGo, ILLINOIS, A CORPORATION OF ILLINOIS.

TRANSMISSION-GEARING.

messes.

Application filed June 3, Ian. Serial he. 701 146.

To all whom it may concern:

Be it'known that I, GEoaenW. BULLEY, a citizen of the United States, residing at Chicago, in the county of Cookand State of Illinois, have invented ce tain new and useful Improvements in Tra smission-Gearing, of which .theufoilowingis a specification.

This inventionrelatesto improvements in transmission-gearing of the type shown and described in-- my application Serial. No. 611,249, tiled'February 27 1911,- and more particularly to the speed changing mechanism and the mechanism for changing the direction of drive employed in connection with such gearing.

In the present invention the change of speed is obtained bytightening some suitable form of clutching or gripping mechanism \VhlCl'I IGHClQI'S active certain gears or elements of the transmission mechanism of the respective speeds or direction of drive desired.

More particularly the present invention relates to the controlling mechanism for making the desired changes and the rovision of means whereby a brake wil be applied to the drivenv shaft or element-when changing fromon'edriveto another, such as from the low speed to the reverse or vice versa, thereby rendoring it impossible to pass-from one to the other. by shifting the controlling lever Without stoppin g' the driven shaft or element To the attainment'of these ends and the accomplishment of other new and useful objects aswillappear, the invention consists in the features of novelty in substantially the construction, combination and arrange ment of the several parts hereinafter more fully described and claimed and shown in the accompanying drawings, exemplifying the-invention, and in whielr v Figure 'l plan section of a transmission gearing constructed in accordance; with the principles-ofkthis-invention, taken on line 1'-1, F ign'fl: Figq2-is a centr'ail'sec tiohal ;Vi6W of the speed changing and reversing mechanism; parts" being omittedi Fig. 3-'-isaperspective view" of ai -detail: Fig. 4 is a sectiena'l view ongline'k tl Fig; 1;" Fig. 5 is anenlargedfdetailview in'- plan secti'en of parts toi-be hereinaftr 'described: Figfi-isa sectional view of a demih eferring morepa-rtieu'larly= to; the draw-f specification of Letters Patent.

Patented Oct". 14,,1913.

shaftaa ndll 'a driven. shat,' which latter transm ts its motion to the load or work in any suitable manner, such as means of a ear 12 carried by the-shaft The mechanism is housed withina casing designated generally .byfl the: reference numeral 13, and 14, 15 and -l6z-designate friction bands orelutchingabands of anordinary planetary transmission gearing,v all of which may be of the ordinary and Well known construction. In gearing of this type, the rotation oft-he shaft 10 is imparted to the driven shaft 11 either directly when the clutch elements connected respectively withithe driving and driven elements are lpcked together, or indirectly through ahrain or through one of a plurality of emu-rue trains of gears, which latter are capable of imparting different speeds'to the drivenshaft 11 from the constant speed shaft 10 when one or the otherlof the clutch bands 15, 16 is: tightened on the: respective drums 17, 18 with which they cooperate.

In the present form of the invention there is shown a clutch for establishing a direct connection between the drivlng and driven shafts 10, 11, but it is'tobe understood that any form ofclutch which-will accomplish this result may I be employed.

In the present form, however, the clutch element l9co6perat'es with the clutch element 20, which latter is secured to the driving shattlO, and the element19'is forced into frictional connection with the element "20 through the medium of':levers' 21, connected 'to'a slidingcollar 22 on the drive shaft 10, preferably by means of suitable links 23, so that When the collar is pushed in one direction on the shaft the clutch'will be applied or locked andfwhen shifted -in the opposite direction it will be released. The collar is moved upon the ShattlOk-by means of 'a shifter 245, whichfm-ay be of any suitable form in construction, and the shifter is operated in ia manneriwhich -will b'e heteinafterldescribedu Within the gear housing '13" (referehee be'- ing'had more particularly to Fig. 2f the ex@ treniityof th'e drive 'shaft 'lo is tprefembly reduced in diameterfas aflfii, and denied on this reduced =p0rtien isfanti'ride endent sleeve whiclr cohstit 'i'it'es the 'driv'enis aft" 11." Carried by a e imri QIKl Of the shaft 1 is a: pinion 26,- and adjacent pinionlis auothee-pinion staof smailer diametenfwhih" 1'10 30, all integrally connected together andmounted on respective shafts 31, which are journaled in the rotatable drum 17. The

gears 28 and 29 of these planetary groups.

mesh with the shaft pinions 27, 26 respectively, and the gears 30 mesh with the pinion 32, carried on the hub of .the rotatable reversing drum 18. This structure is designed for two speeds forward and one reverse, and as before stated, these speed changes are brought about by the clutches or grippingbands 15, 16. It will be manifest that by movin or actuating the band 15 and thereby hol ing the drum 17 against rotation, the shafts 10 will drive the shaft 11 in the same direction through the medium of the gears 27, 28, 29 and 26,- but at a slower speed on account of the different diameter of the pinions. Reverse speed is, as is clearly seen, accomplished by actuating the band 16 to hold the drum 18 against rotation when the drum 14 is released and free to rotate. In this case the gear 32 is held stationary, and the planetary pinions are, as is well understood, caused to rotate bodily in reverse direction to that of'th'e shaft 10 and thereby drive the shaft 11 in a corresponding reverse direction, the speed of reverse rotation of the shaft 11 corresponding to the difference between thespeed imparted to the planetary pinions by the gears 27 and the shaft pinion 32.

In order to drive the shaft 11 at the same speed forward as the drive shaft 10, the clutch embodying the elements 19 and 20 is used. In this structure the element 20 is fastened to the shaft 10 in any suitable manner for rotation therewith, and when the collar 22 is shifted, the element 19 is forced against a friction member 33' disposed between'the elements 19 and 20, and 'aving peripheral teeth or lugs 33" adapted to engage with corresponding teeth 18 on the periphery of the drum 18, so that all of the parts will be locked to the shafts 10 and 11.

The brake band 14 cotiperates with a drum 34, and this drum 34 is connected for rotation with the shaft 11 so that when the bands 15, 16, are released and the band 14 sufiicient'ley far apart to permit of radial expansion and contraction of the band. One of these lugs, the lug 35, is adjustably held in position by means of an adjusting device 37, such as a screw or the like, which passes through a part of the casing 13 with its inner end engaging the lug 35. The op posite lug 36 is the one which is acted upon to cause the band to be contracted upon its drum. For each speed change one of these bands is usually required. In the present invention only one band is shown as only one speed is employed. Another band, however, is employed for the reverse drive and a third band is employed as a brake, consequentl' when one of the bands 15, 16 is tightened a reverse direction will be given to the driven shaft 11, the band 16 being the reversing band, the band 15 is thespced-changing band, While the band 14 is the brake band. The means for tightening either of these bands at will constitutes a portion of this invention and will now be described.

In the present form of the invention the low speed band is preferably disposed between the reversing and the. brake bands, and arranged adjacent the lug 36 of the low speed band 15 is a sliding member 38, mounted for movement in suitable guides 39, and a head 40 engages the lug 36 and is itself engaged by the member 38. This member 38 and head 40 are adapted for free back and forth movement with the lug 36, and connected to the outer end of the member 38 for free pivotal movement is a dog 41, which is preferably removably connected to the member 38 by means of a head 42, which engages in a corresponding recess in the end of the member 38. The free end of the dog 41 is preferably rounded or recessed at 44 so as to be engaged by a cam or projec ion 45 carried by a sliding rod 46, and the dog 41 is so constructed that when the cam or projection 45 engages in the curved or recessed portion 44 the dog will be swung about its point of pivotal support by the movementof the rod 46 in one direction to force the member'38 and the head 40 in a direction to tighten the band 15' on the drum 17. A continued movement of the rod 46 in the same direction, or to the left in Fig. 5, will cause the dog 41 to swing past its central position and the cam or projection 45 will pass out of engagement with the extremity of the dog 41, thereby permitting the elasticity of the band 15 to expand the band and release the drum. The rod 46 is provided with a recess 47 adjacent one edgeof which the cam or projection 45 is arranged, and this recess 47 is adapted to assume a. position with respect. to the dog 41 when the latter is moved out of its central position by the movement of the rod 46 to the left in Fig. 5, so as to receive the extnemity newness.

of the dog 41, for a )urpose to be hereinafter described, and as s own in dotted lines in iii-ran ed adjacent the outer side of the log 36 o the reversing hand 16 a member 51 similar to the member 38 and which eooperates with a head 52 similar to the head 40. Guides 53 are provided in which the member 51 moves, and one of the guides 53 is provided with a stop 54; which holds-u cushioning device 55 for limiting the nrmvement of the dog 56 in one direction, and v which dog 56 similar to the dog 4,1 and is connected to the meml er bi. The mem ier 51 is provided With an extension 57, which limits the movement of the dog 56 in one di reotion. A cam or projection 55 is provided on the rod 46, which is adapted to en-- K gage the extremity of the dog 56 to shift the, member 51 and head 52 when the rod it? is nioved in one direction to tighten the band 16, and. to move out of engagement with. the dog 56 when the rod 46 is moved in the on posite direction to permit the hand to re- 1 lease the drum 18.

Arranged adjacent the lug 36 of the hrzike i band 14 is a member 59 similar to the menr ber 38, and which member 59 cooperates with a head, 60 similar to the head it). Guides (31 are provided for the member :39, and these guides 61 are provided with tensions 62 for supporting the cushioning device (33, and these cushioning devices are provided for limiting the inoimneiit of a dog 64, which is simi or to the clogs 4-1 and 56, and is pivotally connected to the member 59. This dog (5-1 is shifted by the movement of the rod 46, but in order to permit the parts to be compactly arranged and to permit the rod 46 to move the required dis-- tance for controlling the various brake hands, without necessitating the provision ofnnother aperture through the casing, the rod 46 is provided with 21v recess extremity of the dog-(3% is rounded as at (so. The deg 64 is of such a length that it will enter the recess 65 when the latter is in n 65, and the It will therefore be manifest that the shiftl sud consequently the upplieatirm and the re l ieosifi; oi the l'fiF lftil'Yt, bands for controll ling i uiiilerent drives and the brake. In l onion t:liciw i-.,;re, to permit these various l humls to ho lightened zit any desired moment or hetweei; on; of the drives, it is only necestir to locate the cams or projections 44, and the rev 55 so that they will he p si' tinned with it lulion to their respective dogs to tighten tin respective lftlilii at any desired intctwnl or l'JPUXPPtl any desired speeds. in the present 1m tliiltbll. hum-Aer, the cams sud revue-s iii-1, so rinntu i that the l'n'uko hand will ulwnys he uppliul when the rod "it; is shifted to pm from the rm ei'se drive to the low speed in i ire verse. in other words 1 :iceording t th urrong mmit as shown in the present invention it will l e impossible l to puss from the low speed t the Peter-so or wire was i Wlllulil applying the lil'zilit hand. I Assn ting the parts to he in the po ition shown in l ial I). it will in noted that the i band on the lt,\'ii ll ll: it i l llitI'lt-(i l oivii g to the set that the shifted the ting i i to such :2 ion that this lmiul ill het lit-nod. i'lie low speed unil luuli'e 1 hand: will not he uppiieti. hut nill he loosone-1i mung: to the fact that th reeess US l which controls the (log; t of the l ruke hand l has moved tinny from the extremity 6 oi the (log iii, uinl the minxr projm-t on 43 has nun-ed zinui' 'lrom the l g it lii h controls 3 the hum] l1} shown in lull lines in suit 1 ii urtx iiss imint now, that the roll (36 is .i l'it'tl t the left iron the full line position i si'ai n'u in Fig}. 5, it will he =1; that before 1 the thin or proie-ltion l3 reunites the (log ll l to 421154113 and shift the lett r to tighten the luiud for lm peril, the re ess 65 will hove l assumed posi ion to rwvzuthe extremity oi the (log til. alter the min: 5% hus passed 3 out of engngenimt nith the (log .36 on the i lCw'LI-dllif f'itlltl. l'uri er movement of th 1 roll it? in th sumo dire tion will (ill-t" the rod it? to ssnume the pos tion shown in dotted lines in Figw tin-ll will shift the (log (ii i to tighten the bra i fll'lti, still further l'1n'*\(}l!1'l1i oi the rod it) in the some three tion. or to the left when the lll'tlliQ hand is applied. will caus the (log {ii to he moved E to the dotted posit; n shown in Fig. 5 anti 5 the cam or prop-(lion 4-21 to he moved into lengugement with the (log it to shift the member and app 7 1 Should the rod if he shifted farther to {the left in order to secure. high speed by l rendering the clutch elements 1!), 20 active, i it will he noted that the cam o'r proieetion 4,5 will pass out of enfi'spenient with tie dog i ll nnti the recess ii Wnl be positioned as E shown in dotted lines in Fig. 5 to receive l l 1 the low speed itsmd.

A ssuming now that it is (lusireil tn rri aw the high speed clutch and apply tho i? spend or IOYOFFJQ halal, llw (inn; i l ili shifted in the nppnsitia ilirnrtiln; H! in inn right from tho ilnt ml lin l)\i ii[i 2l in Fig. 3. 'llai fir of thin Will, will ran to l-("tiilllt ina iix'r and sauna (lii'u 'tinfl will ugainin lip in ihr ling til to apply the hralw ln'lltl. it the l-llll0 iinw the (ram 0r prn imrtiun if; ill

thin

iiaairman- 1 It now vithri the i'rrvrw m 1hr him i is ilvsiroll, the mil iiin hr rrnpwtiw ilirm' li ini i. Th1

plnywl for inmin; Ill. 'wllil tll iii a this l li l'i' ilgwl; thriiil'trr 5 Hill with a mllar n7. huh

tliO rurl it) the. rml living; ii'otrixtliiy angular in cross iivviiun. in tion (it the inwnt nn i the collar (10mins pr ()8 (son yartimlarl I for Qstalrliahin; an w n-mini: lllli 21M; lintwvon tlm collar 5?? anti tinrml i is aim utilized for l'lliflfilligf rha high xinwal vlmrh or ninnl'irlliing {hr vollar U? to H'tlil'll \iith thu rml ll3 whr'n the latte-r is nmi'wl lmnii'al mmprhxm a (lug WP whi h piuitail u mounted by a plum i Ill/ m (hr: cnlla as to IUHW) thermxith and is arrangml to engage in a notch 7t urinal in the L'Utl t") when the latturia 'n::-hml thev lav-lumbar iii The log (St) is; can: ti t0 tlltti tin:

0 rod 46 tiiwanl the lii-ei t by 1 direct speed clutch, the (10 69 will compel the Qullzir 67 to follow a" the rml and tr, Ilhifllll attached thereto until the incline T) iv-- an: in Patched, whereupon the taihp -u ii 01' t 14! (lug 69 will encnunter a, second i A in:-

lag (3'5) train the notch Tl, thereby prrmnting 1hr nwtach to rise Within the collar an-zl :ilh:

in; 1hr ri l i its no! ,i ary f'I'QLl'iHlll u i want for ii icrating either of ti t, ting Ji l. (Ll, without disturbing thv mllar '37. it l)tili Lf llliklll'fittllfll of course, that the parts arv 0 proportioned and arrangul that bl)- lnrr: tin: dog's arr shifted, the direct spend vlutch will have been released by the wow na-nt (if the collar 67 toward the right. it

v u ill also he notud that the ring ()9 izunstitutva 2 it;

' stun m lock {or the collar (37 for hnhli ainst lmigiimhnal movement with mllar l1." ililll tho (log has hon-n furlinto {El/1 0 in thv nnlrh Ti. hecaugn the (lag;- Bil invapulilc (if passing the inrlinr Ulztil this nnt h Tl m nisters therewith, rnnwquuntiy illlil flll (if a iplying the dirwt spwil x lllfll I \ihiir. 0m if the hantls l-l, 15, ll} i--' ap wml avoided. Tin rml 46 is slitialiii ni'mntul H in auitahle guide passagrs i'nrnirtl in the 11min}! aml is prrfnrably of angular i-nw with their i'rrspl-ctire dogs in nrller to prrinit frw and e tinn of the (iYlVQll shaft 1.], the latter rrahly :nnuntm l in hall lwnrings 76L :1 inure t'lflllly in Fig, 2.

What is claimml as new, is:

ll in a trauunission gearing, the cumin natinn (if a driving shalt} a driven 1 air. na-rhaninrn for imparting: lll-jiilflll Irw n the (hr-inn to the driven @hai t mnhill 'vii' j plurality of ('lutrhinn' or gripping; im

rar'n having a mural in elnniont fur r i'e mg a Mulching); ni' grim'iing aotiun, a forwardly uni luutlau'arlllv nuwahlo actuating izieinl'irr 7 having int-ans fur Slltit iroli operatin :illtl elvinenis a ililiuront, pnints iii iii pith 0t innwnient in min direction, Hlltl a hrak inn nwrhaniain al ;0 einhmlying a inm'ahlc vlvnn nt for ell'ccting a braking action, ,aid i actuating member also having inrans tor uprrating the last recited Qluinent to etlert l a braking artiun at points in line path. w innwnient of the actuating ineinlwr inter mediate the points of operatinn. of tin first recited means.

' in a transmission gearing. the conihi natinn of a driving shaft, a driven i, ii'n-nhanisin for imparting nmtiu (hiring t0 the driven shall, a-nihuiluiig plurality of clutching or gripping in i l tlt'll having a movable element for aii'vrn i a (latching or gripping actinn a tnruar l and buckwardly movable actuating; lilioperation of the tirst recited means.

3. in a transmission gearing, the combination of a driving shaft, a driven shaft,

mechanism for imparting motion from the driving to the driven shaft embodying a plurality of clutching or gripping means, ach having a movable element which when moved effects connection between the driv inc" and driven shafts, each of said gripping or clutching menus also embodying a swinging element, a frame or casing, an actuating slide niovablv v upported by the latter and having menus for engaging and shifting said elements at (lliltl'tllli points in the path of movement of the slide for effect int; u ,tgripping; or clutching action, and means for preventing the operation of one of thc said clutching: r gripping means when the slide is moved in the opposite direction.

ii. in trunonission gearing, the combination of :1 driving shaft, a driven shaft. mechanism for imparting motion from the driving to the driven shaft embodying :1 plurality of clutching or gripping means, each having a movable element which when moved effects connection between the driving and driven shafts, cox-h of said grip ping or clutching means also embodying a swinging element, :1 frame or casing, an actuating slide movuhl v su iported by the lat ter and having means for engaging and shifting said e.c1ncnls at different points;

in the path of movement of the slide for effecting a gripping or clutching action, means for preventing the operation of one of the said clutching or gripping means when the slide is moved in the opposite direction, and one or more yielding stops for each of the said swinging: elements.

5. In a transmission gearing, the combination of a, driving shaft, a driven shaft, mechanism for imparting motion from the driving to the driven shaft embodying a plurality of clutching or gripping means, each having a movable element which when moved effectsmonncction liiotwcen tho drivinc and driven shatns, ec-n of said :ripping or clutching means also embodying a swinging element, a frame or casing, and m actuating slide movably supported by the latter and having means for engaging and shiftinp, said element at different points in the path of movement of the slide for effecting a gripping or clutching action, one of said swinging elements being disposed to operate its clutching means at certain points in the path of movement of the slide in each of its forward and backward movements of the slide, and others of the swinging elements operating to effect a clutching action of its respective clutching means during one direction of movement only of the slide.

6. In a transmission gearing, the combination of a driving shaft, a driven Shaft, n'icchnnism for imparting motion from the driving to the driven. shaft embodying a plurality of clutching or gripping means, each having a movable element which when moved effects connection between the driving: and driven shafts, each of said gripping or clutching means also embodying a swinging element, a frame or casing, an actuating slide movably supported by the latter and having means for engaging and shifting said elements at different points in the path of movement of the slide for effecting; a gripping or clutching action, said slide having a recessed portion for the reception of one of the said swinging elements to prevent the operation of the respective clutching or gripping means when the slide is moved in one direction.

7. In a transmission gearing, the combination of a driving shaft, a driven shaft, mechanism for imparting motion from the driving to the driven shaft embodying a plurality of grippingcr clutching means, each having a movable element which when moved effects connection between the driving and driven shafts, each of said gripping or clutching means also embodying a controlling element, a support, an actuating member carried by the support and having means for engaging and shifting the controlling element at different: points in the path of movement of the slide for effecting a gripping or clutching action when the member is moved, and means for preventing the operation of one of the said clutching or gripping means when the actuating member is moved in one direction.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 1st day of June A. D. 1912.

GEORGE W. BULLEY.

Witnesses:

J. H. JooHUM, Jr., C. H. SEEM. 

